Combination steel and concrete cross-tie.



s. A, BARBER. COMBINATION-STEEL AND CONCRETE GROSS TIE. APPLICATIONFILED FEB. 25, 1911.

1,003,316-.- I Patemd septh 12,1911.

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'specifica ,16

I, SAMUEL A. BARBER, d States, residing at '/LoiiisvilleginthetcountyofJefferson and State yof Kentuqkylyhave invented new andluseful,improvelnents,1n a combination steel vY'and,concretecross-tiefor useon steam and electric railroadsyor Lrailways and for gen lofwhich the following is a speciy teral use,

` My yinventio relates to improvements in railroad 4,or railway Atiesbut more part-icu- V larly ,toy

I `the improvement in a combination steel and concrete crosstie andmeans whereby the rails are Isecured to the crossties.

`This,invention isdesigned to provide a combinedsteel andconcretecrosstie having all the lnecessa-ry' characteristics of ka woodcrosstiefor successful` seivice, but not having-the perishable nature ofthe wood crosstiein railroad or railway service..

lFurthermore, this invention provides a simple andstrongineans foratt-aching and securely fasteningtheysaid crosstie to therails'wherebythe said fastenings cannot be broken or destroyed withoutdestroying the said crosstie, vthus doing away with the necessityofrailybraees on railroad curves.

l Thisinventio'n further provides that this combination steelf andconcrete crosstie may be ofthe same cross-section as a wood crosstiealready in use on a. railroad sothat the combination steel and rconcretecrosstie may be used in conjunction with a wood crosstie; thus it isol'iviousy thatwhen ay wood crosstie becomes rotten, or otherwise unfitforfurther service or use in the roadbed, it may be removed and theabove mentioned combination steel and concrete crosstie substituted torthe wood tie, as the combination steel and concrete crosstie is adaptedfor use with a wood crosstie, as well as adapted for exclusive use in aroadbed.

This invent-ion. permits of economical distribution of crossties in theroadbed, as the ties to which this invention refers may be put in theroadbed when necessary to remove an. old wood tie, or ties, without anymore expense than is necessary to lay new wood crossties and withoutdisturbing the roadbed and without danger to the t-raveling public.

A special feature of this invent-ion is the two solid steel plates thatform the main body of the combination steel and concrete crosstiementioned herein, one of which TESPATENT ann foononiirn' 'ondes-rin afpApniicamn aled'retriiary 2s, ieii.

rounded, as shown in the drawing,

vnot cost any more than a Alt@ Sjeplz: ,1.9111- vvsemaine.,e1o,s7o., anl plates will be 'in tension and the other-in compression. -Both otthese plates are surby an elastic 'material of sufficient length, 'attheir 60 center, where the maximum bending inoment will occur, to allow.them 'a certainspring without-crystallizing the `steel or breaking ordisturbing the/concrete.

The vinvention further provides that the aforesaid crosstie may be castas one piece and solid, with the exception as shown in the. drawing.,The strength of the aforesaid combination steel and concrete crosstiewill depend solely upon the strength of the steel, the concrete beingused only to give it s'utlicient cross-secti0n. f l

The invention provides for a tie that'will first-class -Wood tie, andwill last much longer thanl a first-class Wood crosstie. f Vith theforegoing and other-objects in view, the invention consists in themethodof arranging the details of constructiong'and in the arrangement andcombination ofparts to be hereinaftenmore fully set frth and i claimed.f

In describing the invention in detail, reference will be had to theaccompanying drawing forming part of `'this 'specifica-tion 85 whereinlike characters denote correspoi d ing parts in the several views, inwhichL Figure l is a View, in elevation,V o 4fa crosstie embodying theinvention witli th rails in section. Fig'. 2 is a longitudinal' 90sectional view, showing a method of-construction. Various changes may bemade in the construction-and arrangement vof 'the parts withoutdeparting from the spirit-'br sacrificing any of the advantages of thein- 9 5 vention.- Fig. 3 is a view in plan of *onel ot the steel plates,both being alike in' the main. @ne view will answer for both. They arereduced toward the ends in order to reduce the expense in theconstruction of the crosstie, while, if necessary, they will be madefull width throughout their whole extent. The top plate will have acrosssection sufficient to give it the tensile strength required. It isevident that the iiexibility of the crosstie depends on thecross-section of thelower plate and the amount of curvature given it atits center, both of which will be varied to suit the demands. I do notconiine myself solely to the method of 1.1/ fastening the platestogether as shown in Fig..2 which is only one of the many ways,

in'Figs. 5, 6-and 7, which will extend down help` to fasten the rails tothe tie.

, the'cnerete is cast around them. This willthat it can be done. Fig. 4is a cross-section of the crosstie on the line C D, Fig. 1. Fig. 5 is across-section of the tie on the line A B, Figfl. Fi 6 isan end view ofthe :5 rail plate. Fig. is a longitudinal section .of the rail plate.Fig. 8 is a longitudinal section of a lug, `or plate,- to hold therails.

Referring to the figures by characters of reference, 1 designates thebody of the tie which is a combination steel and concrete y crosstie.

2 is a. metal plate, which is also shown in section by Figs. 6 and 7 tosupport and lIt has vva slight vertical projection acrossl each of itsends against which the end 'of ,the rail fastening shownA at Fig. 8'will `t. This arrangementwill always hold the tie at right anglesacross the roadbed. This plate also has a Acentral lon 'tudinal rib,shown nthrough the concrete and rest on the tog) steel plate for apurpose hereinafter state 4 represents the bolts headed on the .un-

-plate and lug, and, with the `help of the nut, binding them allsecurely together. They 'are also cast ,solid in the concrete and forman integral part with the tie.

5 isthe rail. 6 indicates the twosteel plates described above., For:further details of these plates )see Figs. 2 and 3 of the drawing.

7 is a material vsomewhat softer than concrete', such as asphalt,lmineral tar, or some if combination of materials to be placed around thetop steel plate immediately underneath 'therails and on which the lon'tudinal rib, referred to above',V of the rail p ate will rest, thusgiving thecushioning' effect that is claimed forY ail'wo'od crosstie.. l

8 is; an elasticA material whichv will be x placed'4 around the top andbottom plates at their centers for 'a certain distance before preventthe concrete'frm taking hold of the steel, plates for that distance andwill allow the plates the necessary iexibllity without danger-Tofbreaking them or disturbing the concrete, or, in other words, thisfderneath side of the lower plate andpassing through the lower plate,top plate, raill it break after it is placed in the road-bed and leave aragged line as that is all the consequence that would occur on itsbreak- 111g, for I .do not depend upon the concrete for any strength butmerely to give the 'crosstie the' necessary cross-section.

.10 is a wire mesh cast in the concrete near the bottom of the tie toprotect it from the picks of the workmen. while tamping same. Havingthus described my invention, what I claim, and desire to secure" byLetters Patent, isy 1. A railway crosstie composed of concrete and twosteel plates running lon iftudinally through the concrete and partial yembedded therein, and joined together at their ends, having ,thegreatest cross-section` of the steel at the center of the crosstie.

2. A railway crosstie composed of concrete and two steel plates, havingthe top and bottom plates wrapped with a pliable material for thedistance of 10 or 12 inches on each side of the center opening in theconcrete, thereby' providing flexible steel 'plates inside a concreteblock.

3. A railway crosstie composed of concrete and two steel plates, the topsteel plate wrapped with a pliable material at the point under each rallso as to form a cushion for the rail. A

In testimony of the fact that I claim the foregoing as my own, I havehereunto affixed my'signature in the. presence ef two witnesses.

i SAMUEL A. BARBER.

Witnesses:

G. E. PORTER, H. W. WmLEN.

